A flat panel image display device includes a rear plate including plural
electron emission elements, a face plate disposed opposed to the rear
plate, fluorescent members being disposed on a surface of the face plate
opposed to the rear plate, and the fluorescent members being covered with
a metal back film, and a voltage applying unit to apply an acceleration
voltage of 8 kV to 15 kV between the rear plate and the face plate. In
addition, the metal back film has a getter material, and a current
luminance characteristic of the fluorescent member satisfies
.gamma..gtoreq.0.9 if L=kl.gamma. , wherein L is luminance, l is an
irradiation current, and k is a constant.